Outboard motor with auxiliary service pump



H. E. SCH ENAVAR OUTBOARD MOTOR WITH AUXILIARY SERVICE PUMP Filed July 1, 1948 S ept. 16, 1952 Smaentor frofi/J/wya 2m?" flaw did k (Ittornegs Patented Sept. 16, 1952 in? t 1- 1' OUTBOARD Moron WfTHAUXILIARY 1 7 iSERVICE P MPixi;

a H .E-S Mn tL didt l p u ation July l ,1948;Serial No}36,553

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inventionrelates to internal combustion c'anget underwayphe is usuallyfaced with the neoessitygof bailing'out his b'oat, an; operation such asare'used for propellingboats. g Which is' tedious andtime-c'onsuming 'Oneobject-of this invention-is to provide-"ah Moreover, there are frequentoccasions when outboard-motor having, in addition to -its-1;1sual 5 a powerdriven pump is also desiredrors-is urngm 1m pump, an auxiliary service' puinp gently necessary, such as when a; fire breaksout, Which-cart be used ion-"pumping out-the bilge either on the boat itself, in a summer cottage'or water from the hull of the boat supplyi I "a terinifthe woods surrounding such a cottageorcainp. for suinnier camps by immersingfit in a st am Here a'sainh'andwperated' pumpsar'e inadequate or l'akejgand piping the water -to'the campf-for ahd tiring -The Supp ng of freshwater to a fire fighting, or other purposes'f'where *a pc ersummer "camp is alsoa'lab'orious task because Th engines, and inparticular to outboard n otors I drivenpump is neededand' i's not always-' avail- Suchwatergisrordinarily carried in-bucketsa conahle";- 1.. I v siderabledistance-from thelake or stream'to'the assetforth in* the precedin objeet wherein the 5 -The present"invention eliminates th'ese:idisad auxiliary service pumpis mountedupon aH Eame vantages d s v s' these'problems p d s Anotherobject is' to' provide an'outboard motor, place-Whereit is to beused;

or bracket structure which is attachable on; r ar d m i a auxiliary e-pump ventiorial outboardengine and driven therefrom. dllvel'l from the e e a d capableiof' Du p Another object-is to provide an-outho'ard' motor; h -b es'of: the boat or of supp y s water sg forth inth-e phage-ding g-z e a r e from the; lake or stream to the boat. or to Ia 100a. auxiliary mp s mounted c e idf tion adjacent the lake or stream withoutthe need the engine and driven frorn a' power takeoff device for manual I-labor on.- the part of theioperator.

' whihqs attached to 'pe pal-t e n n The:auxiliary serviceip ump' isiprovidedin addidrive shaf t.

' In the drawingsr ,7], W H Figure 1 is a side elevation; partly in sect on,

tion to-the usual engine-cooling. pump, the latter J of whichis inadequate for-any other purpose than 'cooling and is inconvenientlylocated for any of an outboard motor-with an auxiliary service t r purpose. us. y p rat t m t r. ump ccording 'to a preferred 'form of the ineither from the usual position on the stern .of the p boat'or. secured tor-the dock-while immersed in vention; w ,vfigurevz is tonmlan View of th'io fpo d thebodyof'water, the owner-can obtain a powermotor and auxiliary service pump-shown in'Figm stfeam Water under pressure fuse in me 7 a 'fightmg, water supply,fcleaning or other purposes:

ure -l; and

Figure 3 is a fragmehtary. fro-m elevation of the or'he can reverse the action of the auxiliary'serwupper portion of the outboard motor and auxilu employ Qt r pumpi gout the iary service-pump sh wn in Figures land 2, bilges of v the boat.v .In-thls manner the operator .g {he n of boats equipped with of the boat does" not .need to bail outxhis boat outboard motors have constantly faced the need before getting underwayiparficulaflyif 'i ifb a b bd n p d be :m srnooth'sea running and thefiooding is not excespeiident-of a source of' electricity and whichiwould slvetbatlheneeds to doris to connect Whose a way q a i 'In'thelqrdflinary boat to the suction side 01 the auxiliary service t ump. w q o moored at se 5 under immerse it in the bilge-water,startthe-engine and shelter the rain as ell as leaks" -pumped in-a Short The cause the hull to acquire bilge Water in the Same procedure"is followed,bu-t reversed-, ifasup 'bil'ges thereof. Water also accumulates j in the D yofgwat r under P s isflde'siledt thhbs bilges while the-boat 'is'funderway; particularly beihg connectedto the pressure side of'theauxilin sailing craft Where the watercomes over the y Service pump; r v v i s bow-and into various deck openings for rigging Referring to the drawings" inrdetailfFi guref l or-rsparsi ,and'also spurts 4 mg nt shows-an outboard motor,-g'enerally designated board trunk, particularly Whilesailirig a Ill with an auxiliary service pump; generally choppy sea. Theiordinary hand bilge'pump is not designated ll. mounted thereon 'for'the puf. conveniently'us'ed under suchlcircumstances," as D ses set forth above; The outboard engine 0 is the operator of the boat is" too busy "sailing the of any conventional type and its details fortn n'o boatjto operate such a pump. Hand bailin'g is partfofthe present invention except as they conalso laborious and impractical" for. the .samejrea cern the attachment of the auxiliary, service so'nuAsa consequence,'before the ownerof aboat pump ll. f

The outboard motor It, being conventional, is shown only diagrammatically, and may take various forms, according to the variations in design of conventional motors. The form shown, which is typical of such motors, consists of an engine [2 having cylinders l3 connected to crank case l4 which in turn is bolted to a tubular drive shaft housing 15 extending downward from the engine [2. Bolted to the lower .end of the shaft housing I5 is a propeller shafthousing l6 containing a recess H in which the impeller l8 of an engine cooling pump H) is mounted. The

impeller I8 is keyed or otherwise secured to the drive shaft 20 extending from the engine l2 through the drive shaft housing I5 and propeller shaft housing 5. An arm 2| extends outward from the drive shaft housing [5 and has pivoted thereto, as at 22, an attachment bracket 23 of The frame structure 43 is provided with a piv- 0t stud 41 upon which is pivotally mounted a swinging support 48 in the form of an elongated bar (Figures 2 and 3), the Swinging of which is limited by a pin 49 secured to the frame structure 43 and extending into an arcuate slot 50 in the support 48. A handle 5! enables the support 48 to be swung toward and away from the auxiliary service pump driving drum' 44. The same swinging action-is also accomplished automatically by a wedge-shaped or V'-shaped projection 52 (Figure 1) on the end of the support 48 opposite the handle 5! engaged by a yieldingly furgedplunger 53 with a. corresponding wedgeshaped or V-shaped end 54. The plunger 53 is mounted in a cylinder 55 which is bolted to the frame structure 43 and which contains a coil U-shaped form with clamping screws (one only being shown) 24, threaded through a portion thereof. The opposite arm of the bracket 23 is provided with a. quadrant portion 25 having adjustment holes 26 through which an adjustment screw 2! .is inserted and threaded into a boss 28. By this meansthe-tilt of the motor lllrelatively to the stern of theboat of the particular hull is adjusted. r

' The cooling pump l9 draws in Water through the-intake duct '29 leading. downward to the intake portion. 30 below=the water level and'on the forward side of the propeller shaft housing IS.

The watertaken-in1by the cooling .pump [9 is discharged through the vertical supply conduit 3| into the cooling jackets (not shown) of the engine cylinders I3, from whence it is returned through the return. conduit 32 which discharges into the discharge duct 33. and out through the discharge port 35.. The cooling pump. IS with its impeller lilis also conventional andi's adequate only for its. intended purpose of cooling the engine cylinders 'l'3.-- r

.. The driveshaft 20 continues downward into the propeller. shaft housing ['3 and is connected throughbevel gearing (not shown) tothe propeller shaft 35. upon which the propellerv 36' is l;

mounted. Mounted on the upper end. of the jdrivexshaft 20' is the usual fly wheel 36 above "whichisthe pulleyor drum 3'! for the attachment of the starting cable or rope by'which the engine I2 is [cranked for starting-purposes. A I

handle or'tiller 38is provided. for rotating. the motor l0 andits attached part relatively to the bracket 21 so as to steer the boat. For such purposes the arm 2i and boss 28 are mounted upon a sleeve. 21a in which the shaft housing l5 isjournaled. jWhen-thehandle 38 is'swung to one-side: or the other, it rotates the'shafthousing .l 5. in thewzsleeve 2 la and swings ithe entire motor 10 around this vertical" axis; with. the ex- ,ception of the sleeves 2la andthe parts between it. and a mounting bracket or brackets23. V A gasolinetank39' is bolted as'at 48 and M to; the crankcase and is connecteda-susual to the; carburetor (not shown); Bolted, as at 42, to

the gasoline tank 39, or any other suitable fixed part "of the motor I0, is a framestructure or mounting 43. for supporting the auxiliaryserw i'eejipump It, .nrivinglylconnected; to the upper end. ofLthe drive shaft-r20. ofthe. engine l2; ad-

spring 56 yieldingly urging the plunger 53 against the V-shaped projection 52. Thus, when the V- shaped portions 52 and 54 are in the position shown in Figure 2, the handle end of the support 48. will be'swung toward the drum 46 by the action of the coil spring 56. When, however,the handle 5| is swung manually so as tocause the projection 52 to pass over to the oppositesideot the corresponding portion 54, the plunger 53 will then urge the handle end of the support 48 away from thedrum 46.

- Bolted to the support 48 is the base 51 upon whichthe auxiliary service pump H ismounted (Figure 3). The latter is of anysuitable'type, the gear type illustrated in Figure2 being one such type. A single impeller centrifugal pump may also be substitutedfor the gear pump I.

;The auxiliary service pump I I is provided with a casing 58 having end plates 59 and in which the impeller shafts 6 I- and 62 are journaled. The impeller shafts SI and 62 carry the pumping gears 63 and 54 the shaft 62 being extended downwardto carry a drive pulley 65 provided with a friction band 66 engageable-with the triotion surface 45 of the drive drum 44. The pump casing 58 on its opposite sides is; provided with motor [0 is attached to any suitable support, such as the stern of a boat by means of the bracket 23fand clamping, screws24. If, however, the auxiliary service pump 1 I is tobe used for pumping water ashore or adjacent a dock, the motor 10 may be mounted on a suitable support attached to the dockso that cooling. pump intake 30' (Figure 1) is below the water level. The engine I2 is then started in the usual way, such as by ap plyinga starting cable to the pulley 3 1 to rotate the engine drive: shaft or crankshaft 20. It is assumed, of course, thatthe engine (2 is provided with'theusual magneto, spark plugs, carburetor and other conventional equipment necessaryfor such anlengine. 1 v

When the engine [2. starts, the rotation of the shaft2iland the consequent rotation of the cooling pump impeller l8 draws in water throughthe suction port 3U and pumps it upward through V the conduit. 3! (Figure 1).

h The water is circulatedthroughout the cooling system of theengine l2 and passes downward. through the. conduit 32 and out through the discharge port 34.

To operate the'auxilia'ry service pump l 1, such as for pumping the bilge water out ofthe bilges of the boat, the operator submerges the end of the intake conduit 69 below the water level in the bilges' and positions the conduit 10 so that it dis- 5 V charges over the side of the boat. The conduits 69 and 'lllare preferably flexible conduits, such as rubber hose. If the pump support 48 is not already in theposition shown in Figure 2, the operator places it in this position by grasping the handle 6| and swinging it toward the drum 44. This action swings the V-shaped projection 52 in the opposite direction, causing it to pass to the opposite side of the plunger 53, forcing the latter inward as it does so. The coil spring 56 urges the plunger 53 outward after the projection 52 passes over the ridge of the projection 54. The inner action'of the inclined surfaces of the V- shaped portions 52 and 54 causes the end of the support 48 adjacent the plunger 53 to be swung outward or to the left (Figure 2), causing the opposite end of the support 48 to be swung inward around the pivot stud 41.

When this occurs, the plunger 43, by swinging the handle end of the support 48 toward the driving drum 46, urges the friction band 66 of the pump drive pulley 65 into driving engagement with the friction surface 46 of the driving drum Thus, the owner or operator of a boat canpump out his boat by means of his outboard motor after he gets underway, instead of submitting to the delay otherwise necessary in manually pumping out the boat prior to getting underway. The ordinary outboard motor usually has ample reserve power to operate the auxiliary service pump I l for this purpose. When the pumping has been completed, the operatormerely grasps the handle 5| and swings it in a direction away from the driving drum 44, causing the projection 52 to snap over the projection 54 on the plunger 53 to the oppositeside thereof. This action disconnects the pump driving pulley 65 from the driving drum 44, and the disconnection is maine tained by the action of the plunger 53 against the opposite side of the projection 52 from that shown in Figure 2. Thus, the auxiliary service pump H does not consume any power except when it is actually in use.

If the auxiliary service pump H is to be used for pumping water from a body of Water to a place of use, such as for fighting fire, washing down decks or docks, or pumping water for other purposes, the pump suction hose 69 is immersed in the body of waterand, the pressure or discharge hose (0 is directed to the place where the water is to be utilized. The engine I2 is then started as before, and the support 48 shifted so draws Water from the body of Water, such as a lake or stream, through the suction hose 69 and discharges it under pressure through the pressure or discharge hose 79, providing a powerful stream of water for any purpose for which it is desired.

What I claim is:

1. In combination with an outboard boat motor having a water-jacketed engine with a verticallydisposed propeller shaft drivingly connected thereto and an engine cooling pump drivingly connected to said shaft and having a cooling water discharge conduit connected to th water jacket of said engine and a suction conduit; a bilge pump drivingly connected to said shaft independently of said cooling pump and having bilge water suction and discharge conduits disposed independently of and free from connection with said cooling water suction and discharge conduits.

2. In combination with an outboard boat motor having a Water-jacketed engine with a verticallydisposed propeller shaft drivingly connected thereto and an engine cooling pump drivingly connected to said shaft below said engine and having a cooling water discharge conduit connected to the water jacket of said engine and a suction conduit; a bilge pump drivingly connected to said shaft above said engine independently of said cooling pump and having bilge water suction and discharge conduits disposed independently of and free from connection with said cooling water suction and discharge conduits'.

HAROLD E. SCI-IENAVAR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Frantz Sept. 5, 1944 

